[INFO] cloning repository keeslinp/decision_tree
[INFO] running `"git" "clone" "--bare" "git://github.com/keeslinp/decision_tree.git" "work/cache/sources/gh/keeslinp/decision_tree"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/keeslinp/decision_tree'...
[INFO] running `"git" "clone" "work/cache/sources/gh/keeslinp/decision_tree" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/keeslinp/decision_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/keeslinp/decision_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/keeslinp/decision_tree" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/keeslinp/decision_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/keeslinp/decision_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4b4d8633cf8d7560525c874ade61eb67b1e8e651
[INFO] sha for GitHub repo keeslinp/decision_tree: 4b4d8633cf8d7560525c874ade61eb67b1e8e651
[INFO] validating manifest of keeslinp/decision_tree on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of keeslinp/decision_tree on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing keeslinp/decision_tree
[INFO] finished frobbing keeslinp/decision_tree
[INFO] frobbed toml for keeslinp/decision_tree written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/keeslinp/decision_tree/Cargo.toml
[INFO] started frobbing keeslinp/decision_tree
[INFO] finished frobbing keeslinp/decision_tree
[INFO] frobbed toml for keeslinp/decision_tree written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/keeslinp/decision_tree/Cargo.toml
[INFO] crate keeslinp/decision_tree already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing keeslinp/decision_tree against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/keeslinp/decision_tree:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 3117de8d72ec0cb34b82367892a46ef1a325e19e1810b5db84aabd0689ba074a
[INFO] running `"docker" "start" "-a" "3117de8d72ec0cb34b82367892a46ef1a325e19e1810b5db84aabd0689ba074a"`
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling decision_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `test_accuracy`
[INFO] [stderr]    --> src/decision.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |             let test_accuracy = self.test_set(training);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_test_accuracy`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_pruned_nodes`
[INFO] [stderr]    --> src/decision.rs:288:5
[INFO] [stderr]     |
[INFO] [stderr] 288 |     pub fn count_pruned_nodes(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.75s
[INFO] running `"docker" "inspect" "3117de8d72ec0cb34b82367892a46ef1a325e19e1810b5db84aabd0689ba074a"`
[INFO] running `"docker" "rm" "-f" "3117de8d72ec0cb34b82367892a46ef1a325e19e1810b5db84aabd0689ba074a"`
[INFO] [stdout] 3117de8d72ec0cb34b82367892a46ef1a325e19e1810b5db84aabd0689ba074a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/keeslinp/decision_tree:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 850cd838a376f66081dc416b8bc1cdc2474d921445ebdde5bdb62a288f14a132
[INFO] running `"docker" "start" "-a" "850cd838a376f66081dc416b8bc1cdc2474d921445ebdde5bdb62a288f14a132"`
[INFO] [stderr]    Compiling decision_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `test_accuracy`
[INFO] [stderr]    --> src/decision.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |             let test_accuracy = self.test_set(training);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_test_accuracy`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_pruned_nodes`
[INFO] [stderr]    --> src/decision.rs:288:5
[INFO] [stderr]     |
[INFO] [stderr] 288 |     pub fn count_pruned_nodes(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `"docker" "inspect" "850cd838a376f66081dc416b8bc1cdc2474d921445ebdde5bdb62a288f14a132"`
[INFO] running `"docker" "rm" "-f" "850cd838a376f66081dc416b8bc1cdc2474d921445ebdde5bdb62a288f14a132"`
[INFO] [stdout] 850cd838a376f66081dc416b8bc1cdc2474d921445ebdde5bdb62a288f14a132
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/keeslinp/decision_tree:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 5846db17e4a9910025bd54b855e16c0a1eb9a6fb85949acb8e42a23834f39fc3
[INFO] running `"docker" "start" "-a" "5846db17e4a9910025bd54b855e16c0a1eb9a6fb85949acb8e42a23834f39fc3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/decision_tree-dbe6940941806199
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5846db17e4a9910025bd54b855e16c0a1eb9a6fb85949acb8e42a23834f39fc3"`
[INFO] running `"docker" "rm" "-f" "5846db17e4a9910025bd54b855e16c0a1eb9a6fb85949acb8e42a23834f39fc3"`
[INFO] [stdout] 5846db17e4a9910025bd54b855e16c0a1eb9a6fb85949acb8e42a23834f39fc3